/* ============================================================
   HHpoker / 德扑圈 — Ukiyo-e Japanese Woodblock Theme
   Colors: Indigo #1a2650 · Ochre #c4943a · Vermillion #c4302a
   ============================================================ */

/* --- Google Fonts loaded via HTML --- */

/* --- CSS Variables --- */
:root {
  --indigo-deep: #1a2650;
  --indigo-dark: #1e2d5c;
  --indigo-mid: #2a3f7a;
  --indigo-light: #3a5299;
  --ochre: #c4943a;
  --ochre-light: #d4a84d;
  --ochre-pale: #f0d89c;
  --vermillion: #c4302a;
  --vermillion-light: #d9443e;
  --vermillion-dark: #9a2520;
  --washi: #f5f0e8;
  --washi-dark: #e8e0d4;
  --ink-black: #1a1a1a;
  --sakura: #f4b8c1;
  --sakura-dark: #e8a0ac;
  --gold: #c4943a;
  --white: #fdfaf5;
  --text-primary: #1a1a1a;
  --text-secondary: #3a3a3a;
  --text-light: #8a8a8a;
  --shadow-sm: 0 1px 3px rgba(26,38,80,0.08);
  --shadow-md: 0 4px 12px rgba(26,38,80,0.12);
  --shadow-lg: 0 8px 30px rgba(26,38,80,0.18);
  --shadow-xl: 0 12px 40px rgba(26,38,80,0.25);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Noto Serif SC', 'Noto Serif JP', 'Source Han Serif SC', 'SimSun', serif;
  background-color: var(--washi);
  color: var(--text-primary);
  line-height: 1.75;
  overflow-x: hidden;
  position: relative;
}

/* --- Washi Paper Texture Overlay --- */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(26,38,80,0.008) 2px,
      rgba(26,38,80,0.008) 4px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 1px,
      rgba(26,38,80,0.005) 1px,
      rgba(26,38,80,0.005) 2px
    );
  opacity: 0.6;
}

main,
section,
header,
footer,
nav {
  position: relative;
  z-index: 1;
}

/* --- Typography --- */
.serif-jp {
  font-family: 'Noto Serif JP', 'Noto Serif SC', serif;
}

.serif-sc {
  font-family: 'Noto Serif SC', 'Noto Serif JP', serif;
}

/* --- Seigaiha Wave Pattern --- */
.seigaiha-pattern {
  background-color: var(--indigo-deep);
  background-image:
    /* Wave layer 1 */
    radial-gradient(circle at 0% 50%, transparent 30%, rgba(196,148,58,0.25) 30%, rgba(196,148,58,0.25) 33%, transparent 33%),
    radial-gradient(circle at 25% 50%, transparent 30%, rgba(196,148,58,0.25) 30%, rgba(196,148,58,0.25) 33%, transparent 33%),
    radial-gradient(circle at 50% 50%, transparent 30%, rgba(196,148,58,0.25) 30%, rgba(196,148,58,0.25) 33%, transparent 33%),
    radial-gradient(circle at 75% 50%, transparent 30%, rgba(196,148,58,0.25) 30%, rgba(196,148,58,0.25) 33%, transparent 33%),
    radial-gradient(circle at 100% 50%, transparent 30%, rgba(196,148,58,0.25) 30%, rgba(196,148,58,0.25) 33%, transparent 33%),
    /* Wave layer 2 - offset */
    radial-gradient(circle at 12.5% 50%, transparent 28%, rgba(196,148,58,0.18) 28%, rgba(196,148,58,0.18) 31%, transparent 31%),
    radial-gradient(circle at 37.5% 50%, transparent 28%, rgba(196,148,58,0.18) 28%, rgba(196,148,58,0.18) 31%, transparent 31%),
    radial-gradient(circle at 62.5% 50%, transparent 28%, rgba(196,148,58,0.18) 28%, rgba(196,148,58,0.18) 31%, transparent 31%),
    radial-gradient(circle at 87.5% 50%, transparent 28%, rgba(196,148,58,0.18) 28%, rgba(196,148,58,0.18) 31%, transparent 31%);
  background-size: 120px 60px, 120px 60px;
  background-position: 0 0, 0 30px;
}

.seigaiha-light {
  background-color: transparent;
  background-image:
    radial-gradient(circle at 0% 50%, transparent 42%, rgba(196,148,58,0.12) 42%, rgba(196,148,58,0.12) 45%, transparent 45%),
    radial-gradient(circle at 20% 50%, transparent 42%, rgba(196,148,58,0.12) 42%, rgba(196,148,58,0.12) 45%, transparent 45%),
    radial-gradient(circle at 40% 50%, transparent 42%, rgba(196,148,58,0.12) 42%, rgba(196,148,58,0.12) 45%, transparent 45%),
    radial-gradient(circle at 60% 50%, transparent 42%, rgba(196,148,58,0.12) 42%, rgba(196,148,58,0.12) 45%, transparent 45%),
    radial-gradient(circle at 80% 50%, transparent 42%, rgba(196,148,58,0.12) 42%, rgba(196,148,58,0.12) 45%, transparent 45%),
    radial-gradient(circle at 100% 50%, transparent 42%, rgba(196,148,58,0.12) 42%, rgba(196,148,58,0.12) 45%, transparent 45%);
  background-size: 100px 50px;
}

/* --- Vermillion Accent Divider --- */
.divider-vermillion {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--vermillion), var(--ochre));
  border-radius: 2px;
  margin: 0 auto;
}

.divider-ochre {
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--ochre), transparent);
  border-radius: 1px;
  margin: 0 auto;
}

/* --- Section Title --- */
.section-title {
  position: relative;
  display: inline-block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--indigo-deep);
  letter-spacing: 0.05em;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 3px;
  background: linear-gradient(90deg, var(--vermillion), var(--ochre), var(--vermillion));
  border-radius: 2px;
}

/* Sakura accent dots near titles */
.sakura-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--sakura-dark);
  border-radius: 50%;
  margin: 0 6px;
  vertical-align: middle;
  opacity: 0.7;
}

/* --- Wave Border --- */
.wave-border {
  position: relative;
  border: 2px solid var(--indigo-deep);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.wave-border::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  height: 6px;
  background: repeating-linear-gradient(
    90deg,
    var(--ochre) 0px,
    var(--ochre) 8px,
    var(--indigo-deep) 8px,
    var(--indigo-deep) 10px
  );
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  z-index: 2;
}

.wave-border-inner {
  padding: 2rem;
  background: var(--white);
}

/* --- NAVBAR --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  backdrop-filter: blur(12px);
  background: rgba(26,38,80,0.92);
  border-bottom: 2px solid rgba(196,148,58,0.3);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(26,38,80,0.97);
  box-shadow: var(--shadow-lg);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ochre);
  text-decoration: none;
  letter-spacing: 0.08em;
}

.nav-logo .logo-icon {
  font-size: 1.5rem;
  color: var(--vermillion);
}

.nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  transition: var(--transition);
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--ochre);
  transition: width var(--transition);
}

.nav-links a:hover {
  color: var(--ochre);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta-btn {
  background: linear-gradient(135deg, var(--vermillion), var(--vermillion-dark));
  color: #fff !important;
  padding: 0.5rem 1.25rem !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(196,48,42,0.3);
}

.nav-cta-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(196,48,42,0.4);
  background: linear-gradient(135deg, var(--vermillion-light), var(--vermillion)) !important;
  color: #fff !important;
}

.nav-cta-btn::after {
  display: none !important;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  z-index: 1100;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--ochre);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* --- HERO --- */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--indigo-deep);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(26,38,80,0.85) 0%,
    rgba(26,38,80,0.7) 50%,
    rgba(26,38,80,0.9) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  background: rgba(196,148,58,0.2);
  border: 1px solid var(--ochre);
  color: var(--ochre-light);
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}

.hero-title .highlight {
  color: var(--ochre);
  position: relative;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--vermillion), var(--vermillion-dark));
  color: #fff;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(196,48,42,0.35);
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(196,48,42,0.5);
  background: linear-gradient(135deg, var(--vermillion-light), var(--vermillion));
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--ochre);
  padding: 0.85rem 2rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: var(--transition);
  border: 2px solid var(--ochre);
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
}

.btn-outline:hover {
  background: rgba(196,148,58,0.12);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(196,148,58,0.25);
}

/* Hero wave bottom */
.hero-wave-bottom {
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  z-index: 3;
  pointer-events: none;
}

.hero-wave-bottom svg {
  display: block;
  width: 100%;
  height: auto;
}

/* --- Floating Elements --- */
.floating-sakura {
  position: absolute;
  width: 20px;
  height: 20px;
  background: radial-gradient(circle, var(--sakura) 20%, transparent 70%);
  border-radius: 50% 0 50% 0;
  opacity: 0.5;
  animation: floatSakura 8s ease-in-out infinite;
  pointer-events: none;
}

.floating-sakura:nth-child(1) { top: 10%; left: 5%; animation-delay: 0s; }
.floating-sakura:nth-child(2) { top: 20%; right: 8%; animation-delay: 2s; width: 15px; height: 15px; }
.floating-sakura:nth-child(3) { top: 60%; left: 3%; animation-delay: 4s; width: 12px; height: 12px; }
.floating-sakura:nth-child(4) { top: 70%; right: 5%; animation-delay: 1s; }
.floating-sakura:nth-child(5) { top: 40%; left: 90%; animation-delay: 3s; width: 16px; height: 16px; }

@keyframes floatSakura {
  0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.4; }
  50% { transform: translateY(-30px) rotate(180deg); opacity: 0.7; }
}

/* --- FEATURES SECTION --- */
.features-section {
  padding: 5rem 1.5rem;
  background: var(--white);
  position: relative;
}

.features-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(circle at 20% 80%, rgba(244,184,193,0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(196,148,58,0.06) 0%, transparent 50%);
  pointer-events: none;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1100px;
  margin: 3rem auto 0;
}

.feature-card {
  position: relative;
}

.feature-card .card-inner {
  background: var(--white);
  border: 1px solid rgba(26,38,80,0.1);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  height: 100%;
}

.feature-card .card-inner:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--ochre);
}

/* Wave top border accent */
.feature-card .card-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 20%;
  width: 60%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--ochre), transparent);
  border-radius: 0 0 2px 2px;
}

.feature-icon {
  font-size: 2.5rem;
  color: var(--vermillion);
  margin-bottom: 1rem;
  display: block;
  transition: var(--transition);
}

.feature-card .card-inner:hover .feature-icon {
  transform: scale(1.1);
  color: var(--ochre);
}

.feature-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--indigo-deep);
  margin-bottom: 0.75rem;
  letter-spacing: 0.04em;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- STATS SECTION --- */
.stats-section {
  padding: 4rem 1.5rem;
  background: var(--indigo-deep);
  position: relative;
}

.stats-section .seigaiha-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.6;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.stat-item {
  text-align: center;
  padding: 1.5rem;
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--ochre);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.06em;
}

.stat-icon {
  font-size: 1.5rem;
  color: var(--vermillion);
  display: block;
  margin-bottom: 0.5rem;
}

/* --- TESTIMONIALS SECTION --- */
.testimonials-section {
  padding: 5rem 1.5rem;
  background: var(--washi);
  position: relative;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1050px;
  margin: 3rem auto 0;
}

.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  position: relative;
  border: 1px solid rgba(26,38,80,0.06);
}

.testimonial-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.testimonial-card .quote-mark {
  font-size: 3rem;
  color: var(--ochre);
  line-height: 1;
  opacity: 0.4;
  font-family: 'Noto Serif JP', serif;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0.5rem 0 1.25rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-top: 1px solid rgba(26,38,80,0.08);
  padding-top: 1rem;
}

.testimonial-author img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--ochre);
}

.testimonial-author .author-name {
  font-weight: 700;
  color: var(--indigo-deep);
  font-size: 0.9rem;
}

.testimonial-author .author-role {
  font-size: 0.8rem;
  color: var(--text-light);
}

/* --- FAQ SECTION --- */
.faq-section {
  padding: 5rem 1.5rem;
  background: var(--white);
  position: relative;
}

.faq-container {
  max-width: 800px;
  margin: 3rem auto 0;
}

.faq-item {
  border: 1px solid rgba(26,38,80,0.1);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  background: var(--washi);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(196,148,58,0.3);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--indigo-deep);
  text-align: left;
  letter-spacing: 0.03em;
  transition: var(--transition);
  gap: 1rem;
}

.faq-question:hover {
  color: var(--vermillion);
}

.faq-icon {
  flex-shrink: 0;
  font-size: 1rem;
  color: var(--ochre);
  transition: transform var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--vermillion);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 1.5rem 1.25rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
}

/* --- CTA SECTION --- */
.cta-section {
  padding: 5rem 1.5rem;
  background: linear-gradient(135deg, var(--indigo-deep), var(--indigo-dark));
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(circle at 30% 70%, rgba(196,48,42,0.12) 0%, transparent 40%),
    radial-gradient(circle at 70% 30%, rgba(196,148,58,0.1) 0%, transparent 40%);
  pointer-events: none;
}

.cta-title {
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.cta-subtitle {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* --- FOOTER --- */
.footer-section {
  background: var(--ink-black);
  padding: 4rem 1.5rem 2rem;
  color: rgba(255,255,255,0.65);
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.5rem;
  max-width: 1100px;
  margin: 0 auto 3rem;
}

.footer-col h4 {
  color: var(--ochre);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  letter-spacing: 0.05em;
}

.footer-col p,
.footer-col li {
  font-size: 0.85rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.5);
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col ul li {
  margin-bottom: 0.4rem;
}

.footer-col ul li a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--ochre);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.3);
  max-width: 1100px;
  margin: 0 auto;
}

/* --- Floating CS Button --- */
.floating-cs {
  position: fixed;
  bottom: 90px;
  right: 24px;
  z-index: 999;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--vermillion), var(--vermillion-dark));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}

.floating-cs:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
  background: linear-gradient(135deg, var(--vermillion-light), var(--vermillion));
}

/* --- Back to Top --- */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 24px;
  z-index: 999;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--indigo-deep);
  color: var(--ochre);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid rgba(196,148,58,0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--ochre);
  color: #fff;
  border-color: var(--ochre);
}

/* --- IntersectionObserver Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    background: rgba(26,38,80,0.98);
    backdrop-filter: blur(20px);
    padding: 5rem 2rem 2rem;
    gap: 1.5rem;
    transition: right var(--transition);
    border-left: 2px solid rgba(196,148,58,0.2);
  }

  .nav-links.mobile-open {
    right: 0;
  }

  .mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 998;
  }

  .mobile-overlay.active {
    display: block;
  }

  .features-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .stat-number {
    font-size: 2.2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .hero-title {
    font-size: 1.8rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .stat-label {
    font-size: 0.8rem;
  }

  .floating-cs {
    bottom: 80px;
    right: 16px;
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
  }

  .back-to-top {
    bottom: 20px;
    right: 16px;
    width: 38px;
    height: 38px;
    font-size: 1rem;
  }
}

/* --- Print styles --- */
@media print {
  .navbar,
  .floating-cs,
  .back-to-top,
  .mobile-overlay {
    display: none !important;
  }
}

/* --- Custom Scrollbar --- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--washi);
}

::-webkit-scrollbar-thumb {
  background: var(--indigo-mid);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--indigo-light);
}